http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2245107-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8cac4ca8509c3ca45aca9a0274628c6e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-524 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-524 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-52 |
| filingDate | 2009-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0ea5a6a527cca1066bf86ed8918d1bc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d82adb86f74bf08a41ae20eb1cbc4da http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4aa1dd2b8aaf42be633e31f0700e1f5 |
| publicationDate | 2010-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2245107-A2 |
| titleOfInvention | Methods for preventing or remediating xanthan deposition |
| abstract | Methods for remediation and/or prevention of polymer deposition on surfaces, in particular, on surfaces of drilling machinery and earth formations in the petroleum industry are described herein. Embodiments disclosed herein relate to a method of remediating xanthan deposition, the method including the steps of contacting xanthan deposition, including xanthan complexed with polyvalent metal ions, with a remediation fluid containing at least one chelating agent; and allowing the fluid to dissolve the xanthan deposition. Also disclosed is a method of preventing polymer deposition, including emplacing a wellbore fluid including a crosslinkable polymer and at least one chelating agent in a wellbore; wherein the at least one chelating agent complexes with polyvalent metal ions present in the wellbore. Also disclosed is an improved wellbore fluid including a base fluid; a polymer comprising chemical groups reactive to polyvalent metal ions found downhole; and at least one chelating agent; wherein the least one chelating agent complexes with polyvalent metal ions downhole. |
| priorityDate | 2008-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 179.